Calculating dd.mm.ss from Vertical Aerial Photograph: Help Needed

  • Context: Undergrad 
  • Thread starter Thread starter Arlie
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SUMMARY

The discussion focuses on calculating the coordinates of each corner of a vertical aerial photograph measuring 9" x 9" with a center coordinate of 39-27-30N 077-58-15W and a heading of 27 degrees. The scale of the photograph is 1" = 1000", and the distance from the center to one corner is 5.8". To achieve accurate corner coordinates in degrees, minutes, and seconds, users must apply trigonometry based on the scale and heading, converting measurements from the photograph to real-world coordinates.

PREREQUISITES
  • Understanding of trigonometry for angle calculations
  • Familiarity with geographic coordinate systems (degrees, minutes, seconds)
  • Knowledge of scale conversion techniques
  • Experience with using protractors or compasses for angle measurement
NEXT STEPS
  • Research methods for converting scale measurements to real-world coordinates
  • Learn how to apply trigonometric functions for angle calculations
  • Explore geographic information systems (GIS) tools for coordinate transformations
  • Consult resources on aerial photography interpretation and analysis
USEFUL FOR

This discussion is beneficial for cartographers, geospatial analysts, and anyone involved in aerial photography analysis or coordinate calculations.

Arlie
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I need some guidance with the following task.

I have a vertical aerial photograph that is 9" X 9" square. I have the coordinate of the center of the image, and the heading, and I know the scale of the imagery. What I need to do is calculate what the coordinate is of each corner of the photo in degrees, minutes, and seconds.
The coordinate of the center is

Any help would be much appreciated.
Arlie
 
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Sorry, I did not complete the last sentence.
The coordinate of the center is 39-27-30N 077-58-15W
The heading is 27 degrees
The scale of the photography is 1" = 1000"
The distance on the photograph from the center to one corner is 5.8"

Thanks
Arlie
 


Calculating the degrees, minutes, and seconds from a vertical aerial photograph can be a bit tricky, but with the information you have provided, it is definitely possible. Firstly, you will need to determine the scale of the photograph in order to accurately calculate the coordinates of each corner. The scale will help you convert the measurements on the photograph to real-world coordinates.

Next, you will need to use the heading and the coordinate of the center to determine the direction in which the photograph was taken. This information, along with the scale, will help you calculate the distance from the center to each corner of the photograph.

Once you have the distance, you can use trigonometry to calculate the angles at each corner. From there, you can convert the angles to degrees, minutes, and seconds to get the coordinates of each corner.

It may also be helpful to use a protractor or a compass to help with the calculations. You can also consult with a professional or do some online research for more specific instructions and examples.

I hope this helps guide you in the right direction. Good luck with your task!
 

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